Mounting for inductance coils



1,644 213 oct 4 1927 A-. M. wElNKLE MOUNTING FOR INDUTANCE COILS Filed Aug. l5. 1925 2 Sheets-Sheet kkkkkkkkkkkkkkkkkkkkk kkkkkkkkk atto: mu

Patented Oct. 4, c 1927.

UNITED STATES ABRAHAM M. VIEINKLE, F JACKSONVILLE, FLOR-IDA.

MGUNTING FOR NDUCTANCE COILS.

Application mea Angus-c 15,1923. serial No. @tassa The present invention relates to radio telephony apparatus and more particularly to inductance coils and mountings therefor used in loosely coupled sets.

The primary objects of the invention are to provide inductance coils, such as the spider web type, with novel mounting means which will enable a person to quickly change the coils as for different ranges of wave lengths; or to provide improved mountings for such coils which are simple, inexpensive to manufacture, and which will eiiiciently position the coils in a desired relation.

Other ,objects and advantages of the invention will appear in the following detailed description, taken in connection with the accompanying drawings, forming a part of this specification, and in which drawings:

Figure 1 is a plan view of a loose coupler for use in a regenerative circuit, constructed according to my invention, the dotted lines showing adjusted positions of a primary coil and a tickler coil.

Figure 2 is a face view of one. of the inductance coils. Y

Figure Sis a similar view but inverted to show the reverse face.

Figure 4 is a front elevation of a mounting constructed according to my invention for the reception of the coils.

Figure 5 is a sectional view on the line 55 of Figure 4, with lone of the coils in place.

Figure G is an end elevation of the mounting.

1n the drawings, where like characters designate similar parts throughout the several views, A designates inductance coils each comprising a form B; winding C and plugs D; and E designates a mounting comprising a base F, stationary socket member G for a secondary coil, and movable socket members H and J for primary and tickler coils, respectively.

Referring first to the inductance coils A, the form B is stamped, moulded or otherwise formed of insulating material, relatively flat and including a hub portion 10 and a plurality of uniformly spaced radiating arms 11, preferably of wedge shape, providing radial ways between the arms. It is preferred to provide the hub portion 10 and arms 11 all in the same plane so as to permit of stamping of the form from sheet material. The form is also provided with two transverse ways 13 and 14, the former preferably in hub portion 10 andthe ilatter. in one of the arms, such as the armwhich carries the plugs D.y i Y f y In order to dispose the wire C .on the form, a run of wire.1,5 is passed thru the way 13, of suiicient length to extend longitudinally of one of the arms 11 at one -face of the form and be conductively connected to one of the plugs VD as shownin Figure 2. The wire is thentraned from the opposite face of the form as at 16,` Figure 3, and trained thru one of the ways 12 to lie 'crosswise of the next adjacent arm, 'and-.so onfthe wire is alternately disposed atopposite sides of the form passingfth'ru each succeeding way 12 until woven about the arms 11 and is finally brought thru the Vway 14 and has its terminal portion 17 conductively secured to the other plug D as shown in Figure 3. Thus therun of wire. is bound between transverse runs of the wire and the plug carrying armas shown in Figure 2 where it is not likely to be caught and pulled from conducting relation with its plug. The plugs D may be secured to the. form BV and the terminals of the wire C, to the plugs, in any suitable manner. l

It is to be observed that as the winding progresses, the inductance wire is built-up, so to speak, from the hub outwardly to provvide a neat, compact inductance coil and the danger of displacement of the runsl of wire is avoided by the arms supporting same. The sharp bends in the wire at the ways 13 and 14 tend to prevent pulling of the terminal portions of the wire from their respec-` tive plugs.

Referring now to the mounting E, the baseF is preferably of insulating material, and of an elongated block-like shape. 1t may be provided with siX transverse ways for the passage of the usual conductors, connected to the socket members G, H and J. rlhe stationary socket member G may be secured to the base F as by screws 19 passing thru transverse bores 2O in the base F, heads 21A of the screws being shown received in sockets 22 open to the back of the base, and with the ends of the screw shanks 23 in screw threaded socket 24, of socket 'member G.

The socket members G, H and J are substantially alike in that each comprises a main body portion 25 of insulating material preferably of block like rectangular shape;

socket sleeves 26 for the reception of the plugs D, these sleeves disposed in recesses 27, in body 25; and combined sleeve retainers and binding posts 28, one for each sleeve 25, engaging same in conducting rela-v tion as by being in screw threaded engage n yand the other leaf 34, to the base F as by screws 35.v Y

This permits 'of the use of ordinary cabinet hinges, it being understood that the members H and J are positioned at opposite sides ofmember G, and the hinges 8l secured to the outermost faces of themembers H and J. The main body portions 25, being preferably of blockdike, rectangular shape may limit the movement of the primary and tickler coils toward the seconcary coil by the flat faces engaging the base F when the three coils are in parallel spaced apart relation, as shown in Figure l. The coils being relatively narrow, as compared with the honey-comb type of coils may be readily grasped for adjusting purposes, being at all times in'spaced apart relation, yet need not occupy any more space than the said honey-comb type of coils.

Suitable indicators 3G may be carried by the arms l1 of the coils A, which should be uppermost when the coils are carried by mounting E, for proper polarity, these indicators in the example shown, being large headed tacks secured to the ends of the said arms ll.

While I have shown each coil provided with a pair of plugs D, it is to be understood that the form B may carry sockets and the mounting E, the plugs, or each may carry a plug and a socket for each coil and still kria-l providing a pair of socket openings thereinto, means hingedly mounting the socket member at a side of said base and between said passageways, terminal screws carried at opposite sides by said socket member one adjacenteach of said base passageways, wires extending through said passageways of the base in loose relation therein from one side of the base and exiting at the other side of said base for attachment to said terminal screws, said terminal screws intersecting and entering the socket openings in said socket'member, and a coil including a pair of plugs adapted for detachable entrance in the socket openings of said socket member for engaging said terminal screws.

2. A mounting for inductance coils comH prising a base, a socket member, means connecting the socket member on said base, said socket member inwardly of an outer face thereof having spaced recesses extending thereinto, conducting metal sleeves inserted in said recesses each having passageways therethrough extending from end to end, each of said sleeves intermediate its ends having a transverse opening intersecting the passageway thereof, binding posts carried by said socket member extending through the transverse openings of said sleeves and intersecting the passageways of said sleeves, and a coil having spaced inserting shanks adapted to enter the sleeve passageways and at their free ends to abut the portions of said binding posts which extend across the passageways of said sleeves to limit the inserted movement of said plugs.

ABRAHAM M. VJEINKLE.

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